White light induced photocatalytic activity of sulfur-doped TiO2 thin films and their potential for antibacterial application
White light induced photocatalytic activity of sulfur-doped TiO2 thin films and their potential for antibacterial application
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DOI：
10.1039/b913793a
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发表时间：
2009-01-01
影响因子：
--
通讯作者：
Parkin, Ivan P.
中科院分区：
文献类型：
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作者：
Dunnill, Charles W.;Aiken, Zoie A.;Parkin, Ivan P.
以四氯化钛、乙酸乙酯和二硫化碳为原料，首次采用常压化学气相沉积法（APCVD）制备了硫掺杂二氧化钛薄膜。将该膜与两种工业自清洁产品：Activ（TM）和BIOCLEAN（TM）进行比较，并显示出在亲水性和光诱导超亲水性（有效自清洁涂层的两种优选性质）方面均具有上级。X射线衍射分析表明，薄膜为锐钛矿型TiO2结构。XPS和EDX分析显示S：Ti比随制备条件的变化，表明硫确实已掺入晶格中。S掺杂的TiO 2薄膜被发现是使用英国医院中常见的光源杀死细菌大肠杆菌的有效药剂。
Sulfur-doped titania thin films were prepared by atmospheric pressure chemical vapour deposition (APCVD) for the first time using titanium tetrachloride, ethyl acetate and carbon disulfide. The films were compared to two industrial self-cleaning products: Activ (TM) and BIOCLEAN (TM), and shown to be superior in both photocatalysis and photo-induced superhydrophilicity, two preferential properties of effective self-cleaning coatings. X-Ray diffraction showed the films have the anatase TiO2 structure. XPS and EDX analysis shows changes in S : Ti ratio with preparative conditions indicating that sulfur has indeed been incorporated into the lattice. S-Doped TiO2 films were found to be effective agents for killing the bacterium Escherichia coli using light sources commonly found in UK hospitals.